package com.hlyj.http.base.tool.lib_hlyj_base.utils;

import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.internal.LinkedTreeMap;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class ObjectTypeAdapterRewrite extends TypeAdapter<Object> {

    String TAG = this.getClass().getSimpleName();

    private static final Gson gson = new Gson();

    private TypeAdapter objectTypeAdapter = gson.getAdapter(Object.class);

    public Object read(JsonReader in) throws IOException {
       
        JsonToken token = in.peek();
        switch(token) {
            case BEGIN_ARRAY:
                List<Object> list = new ArrayList();
                in.beginArray();
                while (in.hasNext()) {
                    list.add(this.read(in));
                }
                in.endArray();
                return list;
            case BEGIN_OBJECT:
                Map<String, Object> map = new LinkedTreeMap();
                in.beginObject();
                while (in.hasNext()) {
                    map.put(in.nextName(), this.read(in));
                }
                in.endObject();
                return map;
            case STRING:
                return in.nextString();
            case NUMBER:
                String numberStr = in.nextString();
                // 返回的numberStr不会为null
                if (numberStr.contains(".") || numberStr.contains("e") || numberStr.contains("E")) {
                    return Double.parseDouble(numberStr);
                }
                return Long.parseLong(numberStr);
            case BOOLEAN:
                return in.nextBoolean();
            case NULL:
                in.nextNull();
                return null;
            default:
                throw new IllegalStateException();
        }
    }

    public void write(JsonWriter out, Object value) throws IOException {

        objectTypeAdapter.write(out, value);
    }
}
